Societe Nationale Industrielle Aerospatiale Diamant A Diamant B Diamant BP
Overall
Vehicle		 Operational from 26.11.1965 10.03.1970 06.02.1975
  to 15.02.1967 21.05.1973 27.09.1975
Orbital flights   4 5 3
Payload weight t LEO 0.080 LEO 0.115 LEO 0.112
Gross liftoff weight t 18.49 24.20 26.48
Gross propellant weight t 15.67 21.02 22.68
Total length m 18.94 23.54 21.64
Max. diameter (span) m 2.70 2.70 2.70
Total liftoff thrust (s.l.) kN 273.7 347.9 316.7
Total impulse (vac) MN*s 36.2 53.0 56.4

Fairing

 Total length m 2.16 2.80 0.64 + 3.47
Diameter m 0.65 0.85 1.51/1.38
Total weight t 0.050 0.075 0.135
Stage 3

Name

        
  Length m 1.36 1.01 (1.65) (1.65)
Diameter m 0.65 0.85 (0.80) 0.80
Liftoff weight t 0.712   0.775 0.780
Propellant weight t 0.641 0.680 0.685
Engines   SEP P0.6 SEP P0.68 SEP P0.68
Propellant   solid Isolane 28/7 solid Isolane 29/9 solid Isolane 29/9
Total thrust (vac) kN 38.0 (av.) 39.8 (av.) 40.0 (av.)
Specific impulse (vac) N*s/kg 2677 2726 2692
Burn time s 45 46.5 46
Total impulse (vac) MN*s 1.7 1.7 1.8

Stage 2

 Name   Topaze Topaze Rita 1
  Length m 5.43 5.52) 3.00
Diameter m 0.85 0.85 1.51
Liftoff weight t 2.93 2.94 5.15
Propellant weight t 2.260 2.261 4.000
Engines   SEP P2.2 (4) SEP P2.2 (4) SEP P4.0
Propellant   solid Isolane 28/7 solid Isolane 28/7 solid Isolane36/9
Total thrust (vac) kN 130.6 (av.) 133.7 (av.) 161.2 (av.)
Specific impulse (vac) N*s/kg 2540 2540 2623
Burn time s 44 43 65
Total impulse (vac) MN*s 5.7 5.7 10.5

Stage 1

 Name   Emeraude (L 12) Amethyste (L 17) Amethyste (L 17)
  Length m 9.99 14.21 14.53
Diameter m 1.40 1.40 1.40
Liftoff weight t 14.72 20.29 20.30
Propellant weight t 12.770 18.084 18.000
Engines   LRBA Vexin SEP Valois SEP Valois
Propellant   Turpent./NitricAcid UDMH/N2O4 UDMH/N2O4
Total thrust (s.l.) kN 273.7 347.9 316.7
Specific impulse (s.l.) N*s/kg 1991 2167 2079
Burn time s 93 112 118
Total impulse (vac) MN*s 28.8 45.6 44.1